Smoke-consumer for locomotives.



W. S. WAIT.

SMOKE GONSUMBB Fon LoooMoTIvEs.

APPLICATION FILED I`EB.24, 1911.

1,012,484. Patented Dec. 19, 1911.

' I n N A'. Y1 N3 UNITED sTATEs PATENT OFFICE.

WALTER SEAVERNS WAIT, 0F NEWTON, MASSACHUSETTS.

Specification of Letters Patent.

Patented Dec. 19, 1911.

Continuation of application Serial No. 576,716, iled August 11, 1910. This application tiled February 24, 1911. Serial No. 610,589.

To all whom it may concern:

Be it known that I, WALTER SEAvERNs WAIT, of Newton, in the county of Middleother boilers and consists in the provision of means for insuring the application of the steam pressure of the engine to a smoke consumer at the time the engine is started, irrespective of the volition of the engineer.

Reference is to be had to the accompanyin sheet of drawings forming a part of this application, in which like characters indicate like parts wherever they occur.

In the drawings,-Figure 1 is a side elevation and shows a conventional form of locomotive equipped with my improved apparatus. Fig. 2 is an enlarged detail sectional view of the union and the adjustable valve controlling one of the air ports, and the steam injector carried by said union. Fig. 3 is a cross-sectional view on the line 3-3 of Fig. 2, showing the apertures in the circular pl pe forming the steam injector, through which apertures the steam is forced to create a suction. l

The drawing in Fig. 1, shows in side elevation, a locomotive Fequi ped with a smokeconsuming apparatus o the general form shown in United States Letters Patent to Schleyder, No. 843,848, dated February 12, 1907, to which is applied my improvement.

While I have illustrated my invention in connection with the apparatus of the Sohle der patent referred to, I do not wish to e understood as limiting my invention to sad apparatus, as I have desi ed it for use in connection with any smo e-consuniing a paratus where such an apparatus or app 'iance is desired.

The locomotive 1, is shown in a vertical sectional view, and may be of any preferred construction. The Schleyder smokecon suming apparatus com rising the pi e 2 leading from the smokeox, the pipe 3 ead-y ing from the pipe 2, the air inlet or port 4, the union 5, the ipe 7 leading from the union 5 into the re-box, the baille-plate 8, the injector 9, the pipe 10 leading from the injector 9 to the boiler or steam chamber 50, or some boiler or steam chamber connection as 11, the cock 12, the diierential gage 13,

the pipe 14 extending from said gage to the smoke-box, the pipe 15 extending from said gage to the i e 3 near the union 5, as shown, are o t e general construction and arrangement shown and described in the saidSchleyder patent, and need no further description. While the valv for the air ort -in the union 5 may be as shown in said ISchleyder patent, I prefer the form of valve 6 .shown in my drawings, carried by a screwthreaded stem 40, and adapted toengage a concave seat 42 at the base of the union 5.

43 re resents a bar carried by the union 5, adapte to hold and guide the stem 40. 44, is a nut arranged on said stem, rovided with a screw-threaded perforation, Ey which the vertical height of the valve 6 may be adjusted to either close the port altogether, or adjust the opening between the valve 6 and the seat 42 to regulate the amount of airv to be drawn in.

The bar 43 is shown as connected to the lower end of the union 5, by lag screws 41, 41. This bar does not cover the whole open: ing and is only wide enough to afford suitab e support for the stem 40, leaving a passage way on each side of said bar for air. The course of the air currents by the har 43, by the valve 6, is indicated by arrows. The course of the steam of the injector pipe 9 is also indicated` by arrows.

As shown in Fig. 2, the seat 42 is just below the injector p1 e 9, and the top surface of the latter is just elow the bottom surface of the pipe 3. Such location of the steam injector ermits the creation of the necessary dra without interfering with the bore or action of the i e 3.

In the use ofp t e apparatus so far described, the engineer by opening the cock 12,

permits the steam to pass into the injector 9, then upward through the pipe 7, thereby creating suction in the union 5, drawing in the air throu h the valve 6, drawing in the air through t e pipe 3, the, air inlet or port 4, and the products of combustion from the smoke-box to the pipe 2, thus drawing the cinders and other products of combustion from the smoke-box and mixing, the'same with the steam and air and forcin them against the bathe-plate 8 in the re-box. The amount of air received through the air inlet or port or seat 42 can be regulated as desired by adjusting the valve stem 40.

J and arranged as ycock 12, or properly re This form of apparatus gives entirely satisfactory results, provided the engineer is not careless or malicious in failing to open the late the same. If said cock be not opene or the opening not pro erly regulated by the engineer, then the ein ers when the engine is started collect in and clog the pipe connections, 2, 3, etc., thus reventlng the operation of the apparatus. y my invention this diiliculty to which I have referred is overcome, means being provided to supply the necessary steam to the injector 9 upon the starting of the engine, even though the engineer ails to open or pro erly regulate the cock 12. It will be un' erstood that for the correct working of such device or a paratus, it is necessary that the suction in t e pipe 2 exceed that out of the stack. Therefore, although the cock 12 might be properly adjusted for operationwhile the engine was standing still, yet, as the s eed of the piston was increased, the forces draft out of the smoke-stack is correspondingly increased, and the engineer should open the valve 12 to adjustl the How of steam therethrough to correspond to the increased speed of the piston, or the increased draftout of the stack. If this is not done by the engineer, then there is danger of the pipes 2, 3, etc., becoming clogged, as happens when the' valve 2 is not open at all, though, possibly not to the same extent. In either case, however where the cock is not open, or not properly adjusted to the speed of the piston, the ap aratus fails to work properly and the smo e, cinders and other products of combustion are v not satisfactorily treated or consumed.

20 re resents a dry pipe leading from the steam rum or steam chamber connection 30 to the cylinders. This is an ordinary and well known construction and requires no further descri tion.

In o eration, wrhen the engineer desires to start e engine he opens the throttle, which admits steam froml the steam drum to the dry pipe 20, and thus to thec linders.

21 represents a pipe', the en of which is tapped into the plpe 20, o r one of its branches, at any convenient point. The other end of the 'pipe 21 ,is tapped into the pipe 10, as shown.

' 22 re resents a valve of saery-well known or pre erred type, interpo in the pi 21 between its ends, in order to regulate t eV pressure and amount of steam that can pass throu h said valve to the 10. Sc eyders apparatus eing constructed escribed, and my im ro'ved apparatus being applied as described? then, even though the e eer neglects or fails to open the cock 1 or fa s -to open it suiclently, then upon the opening of the throttle to Start the engine, the required vand not being restricte amount of steam lpasses from the pipe 20 into the pipe 21, through the valve 22 into the ipe 10, into and through the injector 9, up t rough the pipe 7, as before.

By my inventlon the failure of the apparatus to Work, due to the carelessness or inattention of the engineer, is overcome. A. further advantage secured by my improvement is that the en 'neer is not required to manipulate or regu ate the valve 12 to increase or decrease 'the pressure of the steam out of the injector 9, to correspond `with the increased pressure of the exhaust, due 'to increased speed, or vice versa, since, when my apparatus is applied, the necessary increase or decrease of the pressure at the injector 9, is automatically taken care of by the increase of pressure through the plpe 21, or vice versa, When the engine is at rest there is no danger of the clo ging of the connection pipes by cinders, whether my ap aratus is used or not. In the latter case t e passage of steam through the injector 9 can be regulated as desired, or interrupted entirely by means of the cock 12. It w1ll be further noted that in my apparatus, when the correct ra io of steam passing through the reduction valve 22 is once determined, then the necessary increase or decrease of steam at injector 9, due to the increased or decreased speed of the piston, is automatically controlled, these varlations follow simultaneously the chan in speed of the piston, due to the manipu ation of the throttle valve by the engineer. The valve 22 is not necessary, if the pipe 21 is properly proportioned -as to size or capacity.

While I have shown m invention applied to a locomotive, so calle I do not wish to be understood as limiting my invention to that form of a combustion apparatus, it being manifestly immaterial, so far as my improvement is concerned, whether the steam passing through the pipe 20 is employed jor driving a locomotive or astationary engine, or is employed for any other purpose, since my invention contemplates the utiliaingof the passage of the steam through said pipe irrespective of what is done wlth the steam at the delivery endof said pipe. Further, the terms fire-box and smoke-box are to be understood as bein .used by me broadly to any particular construction or osition, the term smokebox in particu ar, embracing any chamber or passageway. for the products of combustion after they leave the fire-box or combustion chamber.

Having thus explained the nature of my invention and described a way of constructing and using the same,though without a t tempting to set forth all of the ,forms 1n which it ma be made, or all of the modes of its use, w at I claim and desire to secure by Letters Patent is:

A combustion apparatus comprising a fire box, a smoke box, a pipe leading from the smoke box to the fire box and arran ed to receive cinders and other products o combustion entering into the smoke box and deliver them into the lire box, an injector arranged in said pipe, a ste-am chamber, connections between said steam chamber and said injector whereby the passage of steam out of said injector creates and maintains a draft through said pipe from said smoke box into said fire box, an air inlet arranged in said pipe, a delivery pipe connected to said steam chamber, and a pipe leading from said delivery pipe and adapted to su ply steam to said injector to automatically maintain the action of said injector with relation to the passage of steam through said delivery pipe.

In testimony whereof I have affixed my signature, in presence of two witnesses.

WALTER SEAVERNS WAIT. Witnesses:

WILLIAM QUINBY, P. W. Pnzzn'r'rl. 

